Locking-ring for retaining picking-fingers.



B. G. GALDERWOOD. LOCKING RING FOR RETAINING PiOKING FINGERS.

Patented Apr. 21, 1914.

APPLICATION FILED APR.30, 1913.

20172285565 [me/2 2 0)" WZW 3174M MW,

UNITED STATES lE ATENT OFFICE.

BENJAMIN ORABTREE OAIDERWOOD, 0F VALLEY FALLS, RHODE ISLAND, ASSIGNOB ronarron or DELAWARE.

-. TQ,PRICE-CAMPIBELL COTTON PICKER CORPORATION, OF NEW YORK, N. Y., A COR- Specification of Letters l'atent.

Patented Apr. 21, 1914.

Application filed April 30, 1913. Serial No. 764,517.

To all whom it may concern:

Be it known that I, BENJAMII? CRABTRnE CALoERwoon, a citizen of the Unlted States, residing at Valley Falls, in the county of Providence and State of Rhode Island, have invented certain new and useful Improve ments in Locking-Rings for Retaining Picking-Fingers, of whic the following is a specification.

My invention relates to improvements in locking rings for picking fingers whereby a pin, sliding horizontally in t e carriers and under the action of a helical coiled spring, engages with an annular groove cut in the periphery of the locking ring, the radius of both pin and groove being identical, and'the center of radius of both annular groove and pin being equidistant from the center of the locking ring.

The objects of my invention are: first, to furnish means which will 'ositivel prevent the locking ring from wor ing en wise and resulting in the loss of picking fingers; sec- 0nd, to provide means for speedy removal and replacement of picking fingers when they become broken or damaged, and third, to eliminate the use of wrenches, threaded nuts and locking nuts.

I obtain these objects by the means illustrated in the accompanying drawings, in which- Figure 1' is a side view of the upper part of the carrier, with a portion cut away at the center line of the picking fingers, and shows the locking ring in place in the carrier and its relatlon to the picking fingers, the combined spiral pinion and socket, and

thebushings which act as bearings for the spiral pinion and socket. Fig. 2 is an en larged section through the carrier on the center line of the sliding pm, at line 2-2 of Fig. 1, and illustrates the manner in which the pin is kept under tension by the helical coiled spring, and of the means provided whereby the pin is prevented from coming out, by the use of a washer riveted to the end of the pin at the outer surface of the carrier. This view also shows the larger diameter of the sliding pin engaging with a groove in the periphery of the locking ring. Fig. 3 is a side view of the locking ring detached, with inside clearance dotted. Fig. 4 is an end view of the lockin ring detached, with the groove dotted, an illustrates-the cut by which the locking ring is inserted or removed in the carrier/ In the drawings, 1 is the locking" ring, 2 its faces for use in graspin the ring, and 3 its groove with the walls 0 which the horizontally sliding in 4 engages; 5 is the tension spring for t e pin; 6 the washer riveted to the end of pin 4; 7 the picking finger; and 8 the carrier. 9 is an oil-throw rin formed on the'butt end portion of the picker-finger, and which by centrifugal action prevents the lubricating oil from coming out on the picking fingers; 10 are bearings formed on the butt end portion of the picker-finger, one at each side of a gear 11 also formed on the picker finger; .and 12 is a cam arm which engages the main translating cam (not shown) and controls the position of the picking finger carriers. Carrier 8 has a recess 8 for reception of the sliding pin, and coiled spring 75 5 is located between a shoulder 8 of the pin and the bottom of recess 8. Carrier 8 provided with sockets at an angle to the lengthwise axis of the carrier, each socket forming a bearing for the butt end portion 0 of a picker-finger. The wall of the socket is indicated by 1%; bearings 10 on the butt end of the finger and the gear 11 are rotated in the socket by means not shown.

What I claim is,v

1. The combination with a picker-finger carrier having a picker-finger-receiving bearing-socket, of a picker-finger having bearings running in the socket; a lockingring having a central opening for passage of the picker-finger and covering the entrance to the socket; said ring having a pinreceiving groove; and a pin held in the groove by the carrier.

2. The combination with a picker-finger carrier having a picker-finger-receiving bearing-socket, of a picker-finger having bearings running in the socket; a lockingring having a central opening for passage ofthe picker-finger and covering the entrance to' the socket; said ring having a pin-receiving. groove; a pin held in the groove by the carrier; the carrier having a my hand in the presence of two subscribing fiole for recelption of tlfle pin arid the1 hole witnesses, this 25th day of April, 1913.

avin an en ar ement or an en ar e ortion 0% the infimd a coiled. spring izetv een BENJAMIN GRABTREE CALDER'WOOD 5 an end of t e enlarged portion and an end Witnesses:

wall of the socket. G. BLAKE,

In testimony whereof I have hereunto set WILI IAM J. DODGE. 

